Stay cool and powered up on the go with the Yesido YF10 Handheld Mini Fan. Designed with a 4000mAh built-in battery, this fan not only delivers refreshing airflow with 3 adjustable speed levels but also doubles as a mini power bank. Compact and easy to carry, it’s perfect for travel, work, or daily use. Specifications: Brand: Yesido Model: YF10 Color: Black Material: ABS Battery Capacity: 4000mAh Charging Input: 5V/2A Charging Time: About 2 hours Power Bank Output: 10W Fan Working Rate: 4W Power Rate: 10W Speed Settings: 3 Adjustable Stages Type: Handheld / Portable Mini Fan Key Features: • 3-speed adjustable cooling for customized comfort • Dual-purpose design – fan and 10W mini power bank • Compact and lightweight for easy portability • Quick 2-hour charging with 5V/2A input • Durable ABS body and sleek design • Ideal for travel, work, and outdoor use